Galilei, Galileo, The systems of the world, 1661

Table of figures

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            <p type="main">
              <s>
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              inſtead of
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              Ariſtotle,
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              to prove that they do not.</s>
            </p>
            <p type="margin">
              <s>
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              The anſwer to
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              Ariſtotles
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              firſt
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              gument.
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              </s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>This is proved by
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              Ariſtotle
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              in the ſame place, when he
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              ſaith, that the natural motion of the parts is the right motion
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              downwards to the centre of the Univerſe; ſo that the circular
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              motion cannot naturally agree therewith.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>But do not you ſee, that thoſe very words carry in them
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              a confutation of this ſolution?</s>
            </p>
            <p type="main">
              <s>SIMPL. How? </s>
              <s>and where?</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>Doth not he ſay that the circular motion of the Earth
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              would be violent? </s>
              <s>and therefore not eternal? </s>
              <s>and that this is
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              ſurd, for that the order of the World is eternal?</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>He ſaith ſo.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>But if that which is violent cannot be eternal, then by
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                <arrow.to.target n="marg298"/>
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              converſion, that which cannot be eternal, cannot be natural: but
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              the motion of the Earth downwards cannot be otherwiſe eternal;
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              therefore much leſſe can it be natural: nor can any other motion
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              be natural to it, ſave onely that which is eternal. </s>
              <s>But if we make
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              the Earth move with a circular motion, this may be eternal to it,
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              and to its parts, and therefore natural.</s>
            </p>
            <p type="margin">
              <s>
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              That which is
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              violent, cannot be
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              eternal, and that
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              which cannot be
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              ternal, cannot be
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              natural.
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              </s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>The right motion is moſt natural to the parts of the
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              Earth, and is to them eternal; nor ſhall it ever happen that they
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              move not with a right motion; alwayes provided that the
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              diments be removed.</s>
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            <p type="main">
              <s>SALV. </s>
              <s>You equivocate
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              Simplicius
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              ; and I will try to free you
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              from the equivoke. </s>
              <s>Tell me, therefore, do you think that a
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              Ship which ſhould ſail from the Strait of
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              Gibralter
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              towards
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              ſtina
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              can eternally move towards that Coaſt? </s>
              <s>keeping alwayes an
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              equal courſe?</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>No doubtleſſe.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>And why not?</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>Becauſe that Voyage is bounded and terminated
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              tween the
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              Herculean
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              Pillars, and the ſhore of the
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              Holy-land
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              ; and
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              the diſtance being limited, it is paſt in a finite time, unleſſe one by
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              returning back ſhould with a contrary motion begin the ſame
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              age anew; but this would be an interrupted and no continued
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              motion.</s>
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            <p type="main">
              <s>SALV. </s>
              <s>Very true. </s>
              <s>But the Navigation from the Strait of
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              galanes
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              by the
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              Pacifick
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              Ocean, the
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              Moluccha's,
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              the Cape
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              di buona
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              Speranza,
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              and from thence by the ſame Strait, and then again by
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              the
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              Pacifick
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              Ocean, &c. </s>
              <s>do you believe that it may be
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              tuated?</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>It may; for this being a circumgyration, which
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              turneth about its ſelf, with infinite replications, it may be
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              ated without any interruption.</s>
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            <p type="main">
              <s>SALV. </s>
              <s>A Ship then may in this Voyage continue ſailing
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              nally.</s>
            </p>
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